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if vec(P) xx vec(R ) = vec(Q) xx vec(R )...

if `vec(P) xx vec(R ) = vec(Q) xx vec(R )`, then

A

`vec(P) = vec(Q)`

B

`vec(P)` and `vec(Q)` need not be equal

C

There are infinite number of possibilities for `vec(P)` (If `vec(Q)` and `vec(R )` are given ) which satisfy this relationship.

D

`vec(p)` and `vec(Q)` must be coplanar

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Verified by Experts

The correct Answer is:
B, C, D
`vec(P) = vec(Q) + lambda vec(R )`
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